Often when inoculating a BAP to observe hemoloysis patterns, investigators will also stab several times through the agar using an inoculating loop. This stab allows for the detection of streptolysin O ...

On artificial cultivation these strains sooner or later assume the characteristics of streptococcus pyogenes. Cultures on blood agar plates from ordinary milk usually give rise to colonies of ...

The remaining cultures (Streptococcus pneumoniae, and Streptococcus pyogenes) will be taken from the blood agar plates inoculated in the previous lab ... If the tube is colorless (picture on the right ...